<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Dropping image on horizontal object scrollbar</title>
<style type="text/css">
p:first-child
	{padding-left:1em;}
object
	{height:3em;
	width:4em;}
img
	{width:5px;
	height:5px;}
</style>
<script type="application/ecmascript">
function dragImage()
	{event.dataTransfer.effectAllowed = 'copy';}
function dropImage(event)
	{document.querySelector('p + p').firstChild.nodeValue = 'PASS';}
</script>
</head>
<body ondragenter="event.preventDefault()" ondragover="return false">
<p><img src="" alt="PNG green pixel" ondragstart="dragImage()" ondragend="dropImage(event)"/></p>
<p>Drag little square above and drop it on horizontal scrollbar. Word PASS should appear once you drop it.</p>
<object type="application/xhtml+xml" data="helper-drop-horizontal-scrollbar.xhtml">XHTML document</object>
</body>
</html>